It's time for Jeb Bush to withdraw and endorse Marco Rubio.

You may think it's a little early for this, but as Joe Biden said yesterday, it's already late. Look at the Real Clear Politics summary of the polls:



Trump dominates, but only with less than one third. Carson does well. The others are struggling to make much of a showing, but somebody needs to emerge as the political mainstream candidate, and I think that person will be Rubio, sooner or later. Jeb Bush should figure that out and do something to help now, when it would be most helpful. Jeb's candidacy has failed. Not completely, not yet, but he hasn't built his poll numbers, he's lost ground, and his self-presentation has been weak. I like his mild manner, but it's "low energy," as Trump puts it, and, as I'd put it, just not competitive and forceful enough to gain ground in this field. Rubio, by contrast, has some combative heft.

Biden showed how to make a beautiful, graceful exit, and Jeb can do even better, because Hillary didn't need Biden's endorsement. She only needed him to get out of the way, and now she's gloriously in the lead and on track for the nomination. Oh? Do you think she might commit suicide at today's Benghazi hearing? Don't make me laugh. I'm laughing like this:



Jeb can do better than Biden, because he can embrace and throw his full support to Rubio when Rubio needs it to get traction for the hard climb to the nomination. Do it now, Jeb, when it matters so much.

ADDED: In fact, every GOP candidate who is not Trump or Carson should look around right now and figure out who, other than himself, he should support. (That includes Fiorina. I'm just using the masculine pronoun for the singular. Old-school grammar.)